Features: 1.A lightweight calculator with a notepad. Small size, it can be placed in your pocket and quickly taken out and used immediately when needed. 2.With a stylus, you can calculate and record at any time. It is convenient for taking phone calls, taking notes quickly, and meeting minutes. 3.This calculator and notepad are designed as a whole, you can make notes while calculating, improving the efficiency of study and work. 4.Supports calculations of up to 12 digits. Below the calculator is a writing board, which is very convenient for taking notes. 5.Desktop calculator has a large display, 12?digit display and large numbers, and is easy to use. specification:Item Type: Calculator Material: LCD+ABS Color: White Battery Type: Button Battery (Shipped with Built-in Battery) Battery Model: CR2032 Battery Capacity: 240mAh Voltage: 3v PackageList: 1 x Calculator 1 x Brush 1 x User Manual